/**
 *    Copyright 2009-2015 the original author or authors.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package org.apache.ibatis.scripting.xmltags;

/**
 * 简单理解就是mapper文件中的每个标签，主要就是用于创建BoundSql。<br>
 * 实现子类有：<br>
 *   {@link ChooseSqlNode}<br>
 *   {@link ForEachSqlNode}<br>
 *   {@link IfSqlNode}<br>
 *   {@link MixedSqlNode}<br>
 *   {@link StaticTextSqlNode}<br>
 *   {@link TextSqlNode}<br>
 *   {@link TrimSqlNode}<br>
 *   {@link VarDeclSqlNode}<br>
 * @author Clinton Begin
 */
public interface SqlNode {
  boolean apply(DynamicContext context);
}
